Safety lock for semiautomatic hand guns

ABSTRACT

I. When installed on a weapon this lock prevents the safety from being taken from safe to fire position. This device will provide a back up to a guns existing safety.  
     The safety lock can be engaged and disengaged by inserting a key into the safety lock, pressing down and turning: see diagram on page 6 Of 7.  
     This device can be added to existing weapons by drilling a hole just below the safety and inserting device. See page 6. It can also be added to new guns at the time on manufacture. Thus becoming a part of the weapon, eliminating the necessity of putting a device on and taking it off each time the weapon is used.

[0001] I. When installed on a weapon this lock prevents the safety frombeing taken from safe to fire position. This device will provide a backup to a guns existing safety.

[0002] The safety lock can be engaged and disengaged by inserting a keyinto the safety lock, pressing down and turning: see diagram on page 6Of 7.

[0003] This device can be added to existing weapons by drilling a holejust below the safety and inserting device. See page 6. It can also beadded to new guns at the time on manufacture. Thus becoming a part ofthe weapon, eliminating the necessity of putting a device on and takingit off each time the weapon is used.

[0004] II. FIG. 12 shows bottom of core with lockarms, spring pins, keygrooves and two springs. This can be found on page 3 Of 7. Also shown onhis page, FIGS. 10 and 11 shows lock in fire position, (FIG. 10) and insafe position, (FIG. 11). Exploding view shows how device is assembled;see page 4 Of 7.

[0005]FIG. 5A (base plate) shown on page 2 Of 7 is secured to bottom ofFIG. 3b (outer casing) with weld; FIG. 4 (lockcore) show how to assemblelock; FIG. 6A (lock arm) is inserted into lock armslot and secured withFIG. 7 (lock arm securing pin) which are pressed into holes drilled inboth sides of the core. Holes are also drilled in face of core, andbottom to secure spring pin, (see FIGS. 4c and 4 d) on page 2 of 7.

[0006] Cut sheet metal to size (see FIG. 1,2,3) make all cuts, holesindentations, slots, grooves and circles: (see FIG. 1a, 2 a, 3 a). Allow{fraction (1/16)}^(th) off an inch for tooling, dye cuts and squaring.All sheet metal parts are made on punch press with custom tools anddyes.

[0007] Form to shape and size: (see FIGS. 1b, 2 b, 3 b) center piece oflock is formed by aluminum extrusion dye shown in FIG. 4a on page 10 f7. FIG. 4 shows different view of lock core, FIGS. 4b and 4 c.

[0008] Base plate is cut from section of FIG. 2a, locking notches aremade at the same time, base plate is ⅜^(th) inches in diameter×{fraction(1/64)} inches thick, locking notches are {fraction (1/16)} of inch high(see FIG. 5a). Device will require two locking arms, four casing studsand two locking arms securing pins ⅛^(th) of an inch long. See FIGS. 6and 7 on page 2 of 7. It will also need two springs pins ⅛^(th) of aninch long, {fraction (5/64)}^(th) of an inch in diameter with flaredhead (see FIG. 8). Next, you will need two springs (see FIG. 9). All ofthe above parts can be prefabricated or customized in metal shop.

[0009] The next step is to secure inner casing to lock core. Lock Coreis inserted into FIG. 2b, and secured with 7 a (casing studs), FIG. 6(lock arm) is placed into lock arm slot and secured with FIG. 7b. InsertFIG. 8 (spring pin)(see page 3 Of 7) into spring hole, securing FIGS. 9and 9a (springs) to bottom of lock core. FIG. 2b is inserted in FIG. 3band secured with fold over flaps. See diagram page 4 of 7.

[0010] Next, drill hole in gun, just below safety hole should be{fraction (11/32)} off an inch in diameter, (see page 5 of 7). Insertlock and secure with weld. See pages 5 of 7 and 6 of 7, and 7 of 7, theyshow lock in safe position and fire position. Add cover (FIG. 13)(seepage 3 of 7) and seal to lock, Gun is ready to fire, cover isprefabricated from manufacturer.

[0011] This lock prevents the safety from disengaging it also preventsthe slide from moving back to engage a round, thus preventing weaponfrom firing when lock is in the safe position. Turn the keycounter-clockwise to disengage the lock so the safety can be moved tothe firing position. (see FIG. 5 of 7 and 6 of 7).

[0012] This device requires three pieces of sheet metal cut tospecifications, (see FIG. 1) 1 inch X's ⅝^(th) of an inch X's {fraction(1/16)}^(th) of an inch for key and key ring (see FIG. 2) 1 inch X's ½of an inch X's {fraction (1/32)}^(nd) of an inch for outer casing, lockcore is formed by aluminum extrusion {fraction (3/16)}^(th) of an inchX's {fraction (11/32)}^(nd) of an inch (see FIG. 4a). The overalldiameter is {fraction (13/32)}^(nd) of an inch.

[0013] This device will address the need of government, federal, state,local and private sectors for a hand gun safety device that is effectiveand easy to operate.

[0014] This device is easy to make and inexpensive to install onexisting weapons as well as new weapons. The safety lock would requireonly minor modification of new weapons and is easy to install onexisting ones:

INDEX

[0015] I. Utility Patent Application Forms

[0016] II. Fee Transmittal Form

[0017] III. Specification

[0018] a. Title of invention

[0019] b. Cross reference to related application, 8 pages

[0020] c. Background of invention

[0021] d. Brief summary of invention

[0022] e. Brief description of several views of the drawings

[0023] IV. Detailed description of the invention

[0024] a. claims

[0025] V. Drawing

[0026] a. Page 1 of 7, materials needed

[0027] 1. Sizes on specification

[0028] b. Page 2 of 7, different views of lock core

[0029] 1. Base plate, lock arms, casing studs and lock arm securing pins

[0030] c. Page 3 of 7, lock in firing position, lock in safe position,spring pin, springs alternate sizes, and bottom of lock. Lock cover FIG.15

[0031] d. Page 4 of 7, exploding view of lock and key

[0032] e. Page 5 of 7 Hole drilled in weapons just below safety,{fraction (11/32)}″ in diameter.

[0033] f. Page 6 of 7 weapon with lock in safe position.

[0034] g. Page 7 of 7 weapon with lock in fire position.

[0035] VI. Oath of Declaration

I claim:
 1. This device will address the need of government, federal,state, local and private sectors for a hand gun safety device that iseffective and easy to operate. This device is easy to make andinexpensive to install on existing weapons as well as new weapons. Thesafety lock would require only minor modification of new weapons and iseasy to install on existing ones: